1. SQUID DISSECTION PREPARATION! 5 th Grade Ms. B

3. Key Terms Stomach Ink sac Esophagus Gill Heart Gonad Anus Pen

4. Key Terms Arms Tentacles Nidamental Gland Buccal Bulb Chromatophores

5. Buccal Bulb: muscle that operates the beak

7. Radula: rows of teeth

9. Squid Anatomy Chromatophores: spots change size to change the squid’s color for camouflage

10. Fins: Help squid change direction when swimming

11. Mantle: the main part of the squid’s body that covers its internal organs

12. Pen: feather-shaped internal structure that supports the squid’s mantle and stabilizes the squid for swimming

13. Stomach: digest food

14. Ink Sac: defense mechanism

15. Ink: pigment melanin which artists refer to as “sepia ink” Octopi = black ink Squid = blue-black ink Cuttlefish = brown ink

16. Eyes: ability to see as well as people!

17. Have 8 arms and 2 tentacles

18. Arms vs. Tentacles Arms: short, rip apart prey and stuff it into the mouth Tentacles: long and have suckers on the end  shoot out to capture prey

19. Suction cups: help squids hold onto food and act as “taste buds”

20. Gills: absorb oxygen from water

21. Beak: mouth resembles a bird’s beak

22. Gonad: reproductive organ males = white in color females = clear

23. Siphon: a tube that squirts out water so that the squid moves like a jet airplane

24. Male or Female? Females: – Eggs = yellow in color – Nidamental glands: large, oval white organs in the middle of the cavity

25. Males:

26. Virtual Dissection http://www.biologycorner.com/worksheets/sq uid_virtual.html#.Uwya-3ddV7E http://www.biologycorner.com/worksheets/sq uid_virtual.html#.Uwya-3ddV7E